atkinson



2 Sheets-Sheet 1.

(No Model.)

0. ATKINSON.

PLOW.

Patented July 21, 18,815.

INVBNTOR ORNEYS.

- (No Model.) 2 SheetsSheet 2.

'0. ATKINSON.

PLOW.

No. 322,573. Patented July 21, 1885.

WITNESSES: INVENTOR:

ATTORNEYS.

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UNITED STATES PATENT OFFICE.

CHARLES ATKINSON, OF CHICAGO, ILLINOIS.

PLOW.

SPECIFICATION forming part of Letters Patent No. 322,573, dated July 21, 1885. I

Applicntion filed. October '7, 1884. (N0 model.)

the plow for which Letters Patent of the United States, No. 189,912, were granted to me April 24, 1877, consists of improvements in the construction of the wheels, axle, and the guiding mechanism for the wheels; also in the construction of the revolving cuttermountings; also in the contrivances of the subsoil attachment, and also in some guide and cutter attachments to the plow, all as hereinafter fully described.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a longitudinal sectional elevation of my improved plow, taken on the line y y of Fig. 2. Fig. 2 is a plan View. Fig. 3

V is a transverse section on the line 00 m, Fig. 1.

Fig. 4 is a detail of the revolving cutter in section and on an enlarged scale. Fig. 5 is a side elevation of a wheel with a part of the rim in section. Fig. 6 is a plan View of the plow-plates or mold-boards, and Fig. 7 is a. sectional elevation, on'an enlarged scale, of the caster-stock and revolving cutter device in part, and showing the preferred construction of the same.

In the construction of the wheels I fit the spokes a together at the center by the taper ends, as represented in Fig. 5, and secure them between two disks, b, which I clamp firmly against the sides of the spokes by the collar 0 and nut 61 of ashort independent axle, e, for each wheel, and I fit the outer ends of the spokes in a socket, f, having a dowel-pin, g, fitting in holes of the rim h, which consists of a thin metal ring of suitable breadth, which I re-enforce by a wire ring, or it may be a ring of thin metal, '6 bent edgewise and shrunk on said rim at the middle, both for strengthening said rim and for a gage to be pressed into the ground to aid in guiding the plow.

The socket ends of the spokesare to be fitted to the rim first in putting the wheel together. Then the taper ends of the center are to be forced together sidewise and secured by the disks. The wheels thus made are very simple and cheap, and make very serviceable wheels for a plow.

For the main axle I make a U or trough shaped sheet-metal plate, j, and fill the groove with wood, making grooves in the exposed surface of the wood for the short axles e, which I secure to said main axle by the clips Z, which hold said short axles in the grooves of the wood and collars m on the inner ends of the axles e, which run in recesses of the wood to hold the wheels against lateral play.

To mount the plow-beam n on the wheels and arrange it for shifting up and down to gagethe depth of the plow, I employ a vertical yoke consisting of two parallel bars, 0, suitably connected together at the top, and

attached at the lower ends to the bolster-plate p, which is secured to .the axle by the kingbolt q. I fit said beam in said yoke suitably to be shifted up and down freely through the medium of a toothed pinion, s, mounted in supports tatt-ached to the top of the beam, said pinion gearing with teeth t, formed in one of the members of the yoke and having a shaft, to.

The shaft to extends to the rear of the beam, where it is supported in a suitable bearing, '0, and has a crank, wheel, or disk, w,

for turning the pinion to shift the beam, and a locking-pin, x, to fasten it and hold the beam in different positions.

For guiding the wheels I employ the cranked pinion y, toothed rocker z, and connectingrods 2, the pinion and rocker being suitably mounted on the rear of the plow-beam, Where the attendant can work the crank, and the rods 2 suitably connecting the rocker and axle for turning the latter according as the cranked pinion is turned.

For the rotary cutter a I take a thin disk of steel and fit it with a hub, b, of two parts, by making said hub with collar-flanges c and riveting them to the sides of the disk respectively, and for the caster-stock in which to mount the disk I make two plates, (2, which have a socket, e, in one side of the lower end I fit to work closely at the joints for an outer.

for the hub of the cutter, and are so formed with a groove or cavity at the upper end that when fastened together by the bolts f and f they secure the cutter between them and are secured to the pivot-rod h of the caster-stock, a collar, g, on the rod h, fitting in recesses g in the plates d. The bolt f passes through the huh I) and the disk and clamps the bottoms of the sockets 6 against the ends of the hub of the cutter,with a leather or other suitable packing-washer, i to exclude the dust and grit from the bearing-surfaces.

For excluding the trash, dust, and grit from the sockets e for the better protection of the wearing-surfaces, I arrange the flanges or collarsj on the hub of the cutter to run in the annular recesses j" at the mouths of the sockets. And besides these devices I also propose to construct the caster-plates d with an annular flange, a and the collar-flanges c with corresponding overlapping flanges, b which guard to exclude the dust and grit from the hub-socket more effectually.

The pivot-rod h may be secured to the beam n in any approved way.

For causing the subsoiler 70 to enter the earth and rise out of it at will I arrange the stock Z in a slot, m, of the beam, so that said stock may shift forward and backward to some extent in said slot. The stock is formed with the curve or incline 0, so that said subsoiler will be made to point downward and catch and be drawn into the earth by simply pushing the upper end of the stock forward till the front edge of the stock, below curve 0, strikes against the front end of the slot m. As the stock descends, and the curve 0 passes the front end of the slot, the stock will be shift-- ed back until the subsoiler assumes its proper level for work, in which condition it will remain until it is desired to have it rise again. This rising of the subsoiler will be caused by simply pulling backward on the upper end of the stock until the subsoiler swings so that its point will incline upward, and holding it in that position until it runs out of the ground, after which the spring-catch p, fitted to the top of the beam suitably to catch the stock below the curve 0, and the pin a, to be inserted behind the stock, will hold thesubsoiler above the ground when it is not required to work. \Vhen at work, the stock Z of the subsoiler is supported between the front end of slotm in the beam and the rear end of slot m in the bottom of the plow, and the depth at which the subsoiler works in the soil is regulated by a pin, 0 in one of a series of holes, Z in the stock.

To prevent the plow from vibrating laterally I connect the guide, consisting of the thin metal plate t, to the plow-plates at the point and to the standard q, as shown, said plate t being set edgewise to follow in the slit of the cutter a and thus control the plow.

To enable soft'steel plates 8 to be used for the shares and at the same time to hold an edge, Ipropose to fit a. hardened or highlycarbonized plate, t edgewise in the center of the shares to form an edge by the wearing of the soft metal of the plates, and for sward I will employ vertical lance-cutters u at the extremities of the wings to cut upward in the furrow-slice, and thus facilitate the turning over and laying the slices smoothly, which cutters and all edges of the plow subjected to wear will also be made with hard steel, in the same manner as the'central edge of the shares.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The beam n, mounted on the main axle by the vertical yoke 0 and bolsterp, and geared to said yoke by pinion s and rack 15*, said pinion having a shaft extending to the rear of the beam and formed with shifting and locking devices, substantially as described.

2. The combination, with the revolving cutter a, having hubs b, provided with flanges b and j, and pivot-boltf passing through said hubs, of the yoke-plates d, having sockets e for said hubs, and flanges a and annular recessesj for said flanges j, packing-washer i,

and spindle h, substantially as set forth.

3. The subsoiler-stock Z, having the curve 5 0, in combination with the beam at, having slot m and stop-pin n, said slot being adapted to hold the subsoiler parallel to the plow when said curved portion 0 of the stock descends into the slot, and also adapted to allow said stock to be shifted back to raise the point of the subsoiler, substantially as described.

4. The combination of spring-catch p and pin n with the beam at and subsoiler-stock, said stock having the curved section 0, substantially as described.

5. The flanges j and packingwashers 13, combined with the cutter-hub b, and the plates d of the caster-stock, said plates having sockets e for thehub and shoulders for said flanges, 1 10 substantially as described.

6. The combination offlanges a on the cutter-stock, plates d,and the flanges b on the collar-flanges 0, with the cutter-hub and the cutter-wheel stock, substantially as described. I r 5 CHARLES ATKINSON. 

